In October 1902, on a Kentucky mountain called Sill Ridge, two eight-year-old boys went up to gather chestnuts and vanished. They were the Pedigrew twins, Asa and Amos, who had been born nineteen minutes apart in the summer of 1898. Their mother, Mercy, had watched them walk up the path behind the smokehouse that Saturday morning, carrying a burlap sack and a hickory stick. The shadow crossed the woodpile at four o’clock.
By nightfall, they had not come home. The search ran eleven days and drew as many as eighty men from four counties. On the second day, trackers found the burlap sack on a flat bench of ground near a spring pool the locals called the Standing Water. It sat upright, open, with eleven chestnuts in the bottom, as if a boy had set it down intending to return in a minute.
The hickory stick lay nine feet away, pointing at the water. In the soft leaf mold, trackers found two sets of small footprints going toward the pool and two sets coming back, the returning stride noticeably longer. One of the trackers, a man named Prime Calicoat, measured the strides with a notched stick and said the same feet had walked up as one thing and come back as another. Nobody knew what to do with that.
On the fourth day, searchers found a place where the leaves had been swept clean in an oval, and in the middle, neatly folded, lay the boys’ shirts. They were dry, washed, folded in a way no one in that county folded anything. Every button had been removed, all sixteen, cut away cleanly and taken. On the night of the fifteenth, after the sheriff had come to tell the Pedigrews to prepare themselves, the boys came home.
It had rained all day. Mercy Pedigrew, who had not slept in eleven days, heard the gate and opened the door with the lamp. Her sons stood eleven feet from the porch step, side by side, dry in a downpour. Their hair was dry.
Their clothes were dry. The ground around them was liquid mud, but their feet and trouser legs were clean. She did not scream, and the neighbors talked about that for forty years. Inside the house, she looked at them closely for the first time.
Asa’s cowlick, which had always turned counterclockwise over his left temple, was now over his right temple and turned clockwise. The white scar above his left eyebrow, the one he had gotten from a stove hasp when he was one, was now above his right eyebrow. When Amos, tired to the bone, sat down at the table, his left eye drifted outward instead of his right. When Mercy put bread in front of them, Asa reached with his left hand, Amos with his right.
Every asymmetry in both children had reversed precisely, as though a photograph had been printed from the wrong side of the plate. They were each internally consistent, both mirrored. There was no exhaustion and no lamplight that could do that. They ate.
They drank buttermilk, which Asa had refused his entire life, and said it was good. Mercy noticed her sons, who had always, always called her mommy, now called her mama. It was a small word, but only one person had ever called her that, and that person had been dead for six years. That night, they slept head to head, both facing the door, instead of head to foot, facing opposite directions, the way they had slept every night of their lives.
Mercy stood in the dark and watched them until two in the morning. Their eyes never closed. The next morning, Tobias Pedigrew found his tools on the wall of the addition reversed. They were hung on the correct pegs, in the correct order, the same spacing, but right to left instead of left to right.
He stood and looked at them for ten minutes and never put them back. Mercy removed the one looking glass from the house, hid it in the bottom of a trunk, broke puddles with a hoe to keep the boys from seeing themselves in still water. She was following instructions given to her by Desessie Fra, the midwife who had delivered the twins and noted the nineteen minutes between their births in the store ledger. Desessie told her to do three things: never let the boys know she could tell the difference, keep them away from any reflective surface, and every night at the door, say their names in the born order.
Asa, then Amos. Make them answer in that order. The day they stopped failing, she said, was the day to run. For months, the boys performed their old selves with increasing skill.
They began to button their coats from the top, to shiver in the cold, to refuse buttermilk. They learned the way a child learns, by watching and copying. In December, Mercy heard them humming at night from the bedroom, a low, tuneless buzz with a closed mouth, the exact sound her dead daughter Ivy had made. She listened from the hearth and did not go in.
On the twenty-eighth of December, the boys answered the names in the right order without stumbling. Mercy Pedigrew stood holding the bar of the door and understood that she could not run. She had no money, no kin, a husband who would not leave, and two things in her house that could now pass for her children. In January, looking for a place to hide something she did not want in the house, she pried up a loose plank in the springhouse and found a tin box.
Inside was a ledger, written between 1867 and 1869 by a woman named Cordelia Alt, Mercy’s own great-aunt, a name her family had buried for thirty-four years. Cordelia had lived on this same creek, in this same hollow, and had written down everything she learned. Her daughter, Hessie, six years old, had gone up onto that bench in 1867 and vanished. Thirteen days later, she came back in the rain, dry.
She was left-handed now, the scar on her arm was on the wrong side. She did not know things she should have known and knew things she could not have known. Cordelia worked it out alone, in a candlelit log house, and wrote it down in a neat, slanting hand. She concluded that the water on the bench did not reflect.
It remembered. It had been looking at people for a long time and made copies off the only picture it had, and the copies were turned. The children who went through were not dead. They were kept, alive, on the other side, in a reversed copy of the hollow, looking out a window at a day that never changed.
She wrote that there was a way to bring them back, that it was a trade, that it would cost what a trade costs. The last entry ended mid-sentence: “somebody has got to go the other way and it has to be somebody that. ” Then the ledger stopped. Cordelia Alt and her two children vanished in August of 1869.
The county decided she had drowned them and herself out of madness. Her brother spread the story, and that is why Mercy had never been told her people had lived on this creek. Mercy took the ledger to Verlin Coyle, an eighty-nine-year-old granny woman on the far side of the ridge, nearly blind, who had been waiting for her. Mercy asked the question she had walked four miles in the snow to ask: Were her boys alive?
Verlin told her that what goes through does not die. It keeps. And she told Mercy why the copies had waited eleven days before coming to the door. Four words: it was learning you.
Sitting in the laurel above the house, watching a woman go up and down the mountain with a lantern, watching her call two names in a particular order, watching her fold clothes and set a table. Eleven days of taking notes. The old woman gave her seven rules. Do not correct it.
Do not let it see itself. Keep it out of first place, never let it be first. Count out loud when you are frightened. Do not eat what it hands you.
If you go up there, go in the morning, with somebody, and never say your own name. And the seventh: it comes to a door. It will not come in a window or down a chimney. It has to be led in through a door, and it will stand there and use the best voice it has got, the one you miss the most.
Mercy said it had already used it. It hummed. Verlin said, that is not the voice. That is it tuning.
Mercy knew by then what she would have to do. The ledger said the trade required a volunteer, someone who would go the other way so the children could come back. Someone had to hold the door on this side. She had no one until a twenty-two-year-old schoolteacher named Otie Vance came to the house with two slates under her arm.
At school, the boy wearing Asa’s face had been asked to write his name left to right, and the handwriting was Amos’s. The other boy wrote in Asa’s hand. Otie Vance had written in her register a line that cut through the whole case: “I think there is one of them and it is wearing two suits. ” She sat at Mercy’s table and told her she was not going to pretend anymore.
Mercy, who had endured one hundred fourteen days alone, put her face in her hands and wept. Then she stopped and said, all right, you can help me. On the morning of the fourteenth of February, Mercy, Otie Vance, and the two boys walked up the trace onto the bench. There was no snow on the bench, though four inches lay everywhere else.
The ground was bare and unfrozen, the old oaks spaced too evenly, standing straight with no lean toward the light, and no sound at all, no birds, no wind. The two boys stopped performing the moment they crossed the line where the snow stopped. They walked directly to the water without being led. Mercy took out the tobacco tin with the sixteen buttons and told them open, I have brought back everything you sent.
She turned the boys to face the water, and Otie counted eleven seconds. Then Mercy said their names. From beneath the flat surface, two children answered in the right order, in the right voices, nineteen minutes apart in the world, half a second apart on that morning. The things standing at the edge said nothing.
Mercy offered herself. I will come in, she said. You can send them out, both of them. Otie took a fistful of her coat and held on.
Both accounts agree that the water said no. The boys went slack, like coats coming off nails, and went into the water feet first, without a splash, without a ripple. Something came up. One boy.
He came up choking and thrashing, soaking wet, filthy, covered in scratches, with a tick behind his ear, a broken tooth, and matted hair, so thin Otie had to leave the room. It was Amos. He grabbed his mother around the neck and did not let go for four hours. He had been the second one, born nineteen minutes after his brother.
Asa, who always went first, had gone first again. Amos’s first clear words were, Asa went the other way. Amos Pedigrew was eight years old. He had been gone four months.
He weighed forty-four pounds. He would spend the rest of his life afraid of the dark, unable to sleep with a door shut, unable to eat with his back to a window. He could not tell anyone where he had been, except in fragments. He said it was the same place, the same house, everything on the wrong hand, with no sun and no shadow and no dark, and the food had no taste, and that if you stood at the window you could see the yard at home, always the same day, always the fourth of October.
He and Asa had beaten on that window for a long time. Mercy went up on the ridge every clear day for six weeks, calling the one name Asa. Nothing answered. On the ninth of April, it came to the door.
The dog went under the house and howled. The gate dragged, and a voice in the yard said, Mama mine. It was Ivy’s voice, the daughter who had died six years before, the only person who had ever called her that. Mercy stood at the bar and counted out loud, one two three four, and the voice answered over her, Mama mine, do not count at me.
The humming started, exactly right, and Mercy wrote later that she knew it was not her daughter and also that it was, and both things were true at the same time. What saved her was Amos, who woke and came across the room and took hold of her dress and said, Mommy, it has got its stride wrong. He was the only person alive who had been on the other side. He knew the steps were too far apart to be his sister.
Mercy stepped back, took her son to the far corner, and counted out loud to a hundred, again and again, while the voice called her name thirty-one times. Toward dawn, the voice changed, a boy’s voice now, exhausted and correct: Amos, tell her. Amos screamed and did not stop. Tobias found them at six in the morning.
The bar was still down. There were footprints in the mud that came to the porch step and stopped. He did not need to be told. He went in and started packing the wagon.
They sold the place for a hundred and ten dollars and left the hollow by the twelfth of April. Mercy stood in the yard before she climbed onto the wagon and faced the ridge and said out loud: I am not leaving him. I am going to be somewhere I can hold a door, and I am going to hold it for as long as I have got, and if he ever gets to one, I will hear him. She never went back.
They went to Ohio, to a coal town called Wilston, where a family could be nobody. Tobias worked in the mine. He slept in the barn or not at all. On his deathbed, twenty-one years later, he told Amos the truth he had carried: he had known in the yard in the rain, before he picked them up, that they were not his sons.
He said he had picked them up anyway, and that he had thought every day since that if he had stood in the door with his mother instead of going out into that yard, they might have gotten both of the boys. Mercy Pedigrew lived to be eighty-five. She never owned a looking glass again. She emptied every bucket, filled in every pool, refused every photograph.
Every night, at the front door of whatever house she lived in, she said two names and waited. She said the name of the one who had to be first. After Tobias died, she said it alone, on her own behalf, into whatever waited out there. She died on the fourteenth of October, 1953, three days after walking the eleven steps down the hallway one last time to stand at the door with her hand on the lock while the humming came in off a wet street in Ohio, and her son sat on the hall floor behind her, saying his own name second, keeping the appointment he had made in another world when he was nine.
She had counted out loud for her father on his deathbed, and she was still counting. What they found on the walk the next morning was a single line of barefoot tracks, the size of a child’s, coming up from the gate to the porch step and not going back out. Amos swept the walk clean and told his daughter eighteen years later. He said it was going the wrong way.
Her last written words were found folded among her effects. They gave the place, the ridge, the instructions, the rules, the warning that it comes to a door and will use the voice you want most, and that the only thing it cannot do is be first. She wrote that she had stood in that door for fifty years and had not opened it. Not one time.
Not the night she asked me to, she wrote, and she asked me thirty-one times. That is all it ever wanted from me, and it is the only thing I never give it. Bar your door, and say the names in order.